103212066 has 48 divisors (see below), whose sum is σ = 230757984. Its totient is φ = 30665088.

The previous prime is 103212059. The next prime is 103212071. The reversal of 103212066 is 660212301.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35421 + ... + 38223.

It is an arithmetic number, because the mean of its divisors is an integer number (4807458).

Almost surely, 2^103212066 is an apocalyptic number.

103212066 is an abundant number, since it is smaller than the sum of its proper divisors (127545918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103212066 is a wasteful number, since it uses less digits than its factorization.

103212066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 103212066 is about 10159.3339348601. Note that the first 3 decimals coincide. The cubic root of 103212066 is about 469.0762995994.

Adding to 103212066 its reverse (660212301), we get a palindrome (763424367).

The spelling of 103212066 in words is "one hundred three million, two hundred twelve thousand, sixty-six".